EN 62368-1:2014/prAD:2018

SLOVENSKI STANDARD
01-september-2018
Oprema za avdio/video, informacijsko in komunikacijsko tehnologijo - 1. del:
Zahteve za varnost (IEC 62368-1:2014, spremenjen)
Audio/video, information and communication technology equipment - Part 1: Safety
requirements (IEC 62368-1:2014, modified)
Einrichtungen für Audio/Video-, Informations- und Kommunikationstechnik – Teil 1:
Sicherheitsanforderungen (IEC 62368-1:2014, modifiziert)
Equipements des technologies de l'audio/vidéo, de l'information et de la communication -
Partie 1: Exigences de sécurité (IEC 62368-1:2014, modifiée)
Ta slovenski standard je istoveten z: EN 62368-1:2014/prAD:2018
ICS:
33.160.01 Avdio, video in avdiovizualni Audio, video and audiovisual
sistemi na splošno systems in general
35.020 Informacijska tehnika in Information technology (IT) in
tehnologija na splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD DRAFT
EN 62368-1:2014
NORME EUROPÉENNE
EUROPÄISCHE NORM
prAD
June 2018
ICS 33.160.01; 35.020
English Version
Audio/video, information and communication technology
equipment - Part 1: Safety requirements (IEC 62368-1:2014,
modified)
Equipements des technologies de l'audio/vidéo, de Einrichtungen für Audio/Video-, Informations- und
l'information et de la communication - Partie 1: Exigences Kommunikationstechnik - Teil 1: Sicherheitsanforderungen
de sécurité (IEC 62368-1:2014, modifiée) (IEC 62368-1:2014, modifiziert)
This draft amendment prAD, if approved, will modify the European Standard EN 62368-1:2014; it is submitted to CENELEC members for
enquiry.
Deadline for CENELEC: 2018-09-14.

It has been drawn up by CLC/TC 108X.

If this draft becomes an amendment, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.

This draft amendment was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 65097 Ref. No. EN 62368-1:2014/prAD:2018 E

European foreword
This document (EN 62368-1:2014/prAD:2018) has been prepared by CLC/TC 108X "Safety of
electronic equipment within the fields of Audio/Video, Information Technology and
Communication Technology".
This document is currently submitted to the Enquiry.

The following dates are proposed:

• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to (dop) dor + 12 months
be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-12-20
standards conflicting with this document
have to be withdrawn
This document has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association, and supports essential requirements
of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of
this document.
1 Modification to Clause 2 Normative references
Add the following normative reference:
EN 50332-3:2017, Sound system equipment: headphones and earphones associated with
personal music players - Maximum sound pressure level measurement methodology - Part 3:
Measurement method for sound dose management
2 Modification to Clause 3 Terms, definitions and abbreviations
3.3 Terms and definitions
Add the following new terms and definitions:
3.3.18 Sound exposure
3.3.18.1
momentary exposure level
MEL
metric for estimating 1 s sound exposure level from the HD 483-1 S2 test signal applied to
both channels, based on EN 50332-1:2013, 4.2
Note 1 to entry: MEL is measured as A-weighted levels in dB.
Note 2 to entry: See B.3 of EN 50332-3:2017 for additional information.
3.3.18.2
calculated sound dose
CSD
one week rolling estimate of sound exposure expressed in percent of the maximum regarded
as safe
Note 1 to entry: See B.4 of EN 50332-3:2017 for additional information.
3.3.18.3
sound exposure
E
A-weighted sound pressure (p) squared and integrated over a stated period of time, T
Note 1 to entry: The SI unit is Pa s.
T
E = pt() dt
∫
3.3.18.4
sound exposure level
SEL
logarithmic measure of sound exposure relative to a reference value, E , typically the 1 kHz
threshold of hearing in humans
Note 1 to entry: SEL is measured as A-weighted levels in dB.
 
E
SEL =10lg dB
 
E
 0 
Note 2 to entry: See B.4 of EN 50332-3:2017 for additional information.
3.3.18.5
digital signal level relative to full scale
dBFS
levels reported in dBFS are always r.m.s. Full scale level, 0 dBFS, is the level of a dc-free
997-Hz sine wave whose undithered positive peak value is positive digital full scale, leaving
the code corresponding to negative digital full scale unused
Note 1 to entry: It is invalid to use dBFS for non-r.m.s. levels. Because the definition of full scale is based on a
sine wave, the level of signals with a crest factor lower than that of a sine wave may exceed 0 dBFS. In particular,
square-wave signals may reach +3,01 dBFS.
3 Modification to Clause 10 Radiation
Replace Clause 10.6 with the following:
10.6 Safeguards against acoustic energy sources
10.6.1 General
Safeguard requirements for protection against long-term exposure to excessive sound
pressure levels from personal music players closely coupled to the ear are specified below.
Requirements for earphones and headphones intended for use with personal music players
are also covered.
A personal music player is a portable equipment intended for use by an ordinary person,
that:
– is designed to allow the user to listen to audio or audiovisual content / material; and
– uses a listening device, such as headphones or earphones that can be worn in or on or
around the ears; and
– has a player that can be body worn (of a size suitable to be carried in a clothing pocket)
and is intended for the user to walk around with while in continuous use (for example, on a
street, in a subway, at an airport, etc.).
EXAMPLES Portable CD players, MP3 audio players, mobile phones with MP3 type features, PDAs or similar
equipment.
Personal music players shall comply with the requirements of either 10.6.2 or 10.6.3.
NOTE 1 Protection against acoustic energy sources from telecom applications is referenced to ITU-T P.360.
NOTE 2 It is the intention of the Committee to allow the alternative methods for now, but to only use the dose
measurement method as given in 10.6.5 in future. Therefore, manufacturers are encouraged to implement 10.6.5
as soon as possible.
Listening devices sold separately shall comply with the requirements of 10.6.6.
These requirements are valid for music or video mode only.
The requirements do not apply to:
– professional equipment;
NOTE 3 Professional equipment is equipment sold through special sales channels. All products sold through
normal electronics stores are considered not to be professional equipment.
– hearing aid equipment and other devices for assistive listening;
– the following type of analogue personal music players:
• long distance radio receiver (for example, a multiband radio receiver or world band
radio receiver, an AM radio receiver), and
• cassette player/recorder;
NOTE 4 This exemption has been allowed because this technology is falling out of use and it is expected that
within a few years it will no longer exist. This exemption will not be extended to other technologies.
– a player while connected to an external amplifier that does not allow the user to walk
around while in use.
For equipment that is clearly designed or intended primarily for use by children, the limits of
the relevant toy standards may apply.
NOTE 5 In Europe, the relevant requirements are given in EN 71-1:2011, 4.20 and the related tests methods and
measurement distances apply.
10.6.2 Classification of devices without the capacity to estimate sound dose
10.6.2.1 General
This standard is transitioning from short-term based (30 s) requirements to long-term based
(40 hour) requirements. These clauses remain in effect only for devices that do not comply
with sound dose estimation as stipulated in EN50332-3.
For classifying the acoustic output L , , measurements are based on the A-weighted
T
Aeq
equivalent sound pressure level over a 30 s period.
For music where the average sound pressure (long term L , ) measured over the duration
T
Aeq
of the song is lower than the average produced by the programme simulation noise,
measurements may be done over the duration of the complete song. In this case, T becomes
the duration of the song.
NOTE Classical music, acoustic music and broadcast typically has an average sound pressure (long term L , )
T
Aeq
which is much lower than the average programme simulation noise. Therefore, if the player is capable to analyse
the content and compare it with the programme simulation noise, the warning does not need to be given as long as
the average sound pressure of the song does not exceed the required limit.
For example, if the player is set with the programme simulation noise to 85 dB, but the average music level of the
song is only 65 dB, there is no need to give a warning or ask an acknowledgement as long as the average sound
level of the song is not above the basic limit of 85 dB.
10.6.2.2 RS1 limits (to be superseded, see 10.6.3.2)
RS1 is a class 1 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a
proprietary connector between the player and its listening device, or where the
combination of player and listening device is known by other means such as setting or
automatic detection, the L , acoustic output shall be ≤ 85 dB when playing the fixed
T
Aeq
“programme simulation noise” described in EN 50332-1.
– for equipment provided with a standardized connector (for example, a 3,5 phone jack) that
allows connection to a listening device for general use, the unweighted r.m.s. output
voltage shall be ≤ 27 mV (analogue interface) or -25 dBFS (digital interface) when playing
the fixed “programme simulation noise” described in EN 50332-1.
– The RS1 limits will be updated for all devices as per 10.6.3.2.
10.6.2.3 RS2 limits (to be superseded, see 10.6.3.3)
RS2 is a class 2 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a
proprietary connector between the player and its listening device, or when the combination
of player and listening device is known by other means such as setting or automatic
detection, the L , acoustic output shall be ≤ 100 dB(A) when playing the fixed
T
Aeq
“programme simulation noise” as described in EN 50332-1.
– for equipment provided with a standardized connector (for example, a 3,5 phone jack) that
allows connection to a listening device for general use, the unweighted r.m.s. output
voltage shall be ≤ 150 mV (analogue interface) or -10 dBFS (digital interface) when
playing the fixed “programme simulation noise” as described in EN 50332-1.
10.6.2.4 RS3 limits
RS3 is a class 3 acoustic energy source that exceeds RS2 limits.
10.6.3 Classification of devices (new)
10.6.3.1 General
Previous limits (10.6.2) created abundant false negative and false positive PMP sound level
warnings. New limits, compliant with The Commission Decision of 23 June 2009, are given
below.
10.6.3.2 RS1 limits (new)
RS1 is a class 1 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a
proprietary connector between the player and its listening device, or where the
combination of player and listening device is known by other means such as setting or
, acoustic output shall be ≤ 80 dB when playing the fixed
automatic detection, the L T
Aeq
“programme simulation noise” described in EN 50332-1.
– for equipment provided with a standardized connector (for example, a 3,5 phone jack) that
allows connection to a listening device for general use, the unweighted r.m.s. output
voltage shall be ≤ 15 mV (analogue interface) or -30 dBFS (digital interface) when playing
the fixed “programme simulation noise” described in EN 50332-1.
10.6.3.3 RS2 limits (new)
RS2 is a class 2 acoustic energy source that does not exceed the following:
– for equipment provided as a package (player with its listening device), and with a
proprietary connector between the player
...